Bøger af Rahul Kumar Verma

The identity of an individual entity lies in the wholeness of the system in which it is present. We observe numerous complex phenomena happening around us, and to study them, we de¿ne them as systems with particular entities leading to the commencement of those phenomena. Modelling these complex systems gives rise to the formation of complex networks. These networks represent the meaningful connections between the entities of the complex system. "I think the next century (21st) will be the century of complexity", once said Stephen Hawking in light of the omnipresence of complex systems around us. The past two decades observed the immense potential of network science due to its holistic approach, ¿exibility, and applications to vast ¿elds of scienti¿c research. Network science has provided various models and algorithms under the umbrella of statistical physics to analyze natural and social sciences, including complex biological systems. Like any other physical system, it is also required to identify and characterize the individual building blocks in complex biological systems and obtain and establish insights into the interactions. The biological complex systems can be de¿ned by multiple types of entities such as biomolecules (proteins and genes), pathways (metabolic, anabolic, and disease), cells (neurons), tissues (brain regions), and organs (human complexome) along with their de¿ned interactions. In biological systems, interactions among cellular entities are not always straightforward as in social and physical networks. Hence, their interpretation becomes much more complicated, aided by the immense size, temporal dynamics, and non-linearity behaviour. However, the vast diversity of biological systems allows us to de¿ne them at various levels into network models.

A microstrip patch antenna has a conducting patch which is made of such metals as copper or gold and printed on a grounded dielectric substrate. These antennas are low profile, lightweight, easy fabrication, conformable to planar and non-planar surfaces compatible with MMIC design. A conventional microstrip patch antenna has the disadvantage of narrow bandwidth this poses a challenging task for the microstrip antenna designer to meet the broadband technique. The antennas for portable WLAN device require broadband, high gain, and compact design. As a result of these parameters, multiband antenna techniques have attracted more attention. Recently many new technologies have been proposed for multiband antenna design. In this work rectangular and an equal area, triangular patch antennas are designed and simulated. Overall comparison is made between the antennas.

Rapeseed and mustard is a major oil seed crop of India after groundnut. The chemical fertilizer is the mainstay of agricultural production due to insufficient availability of alternative nutrient source. The organic resources available presently, could meet nearly one-third of total nutrients required to achieve the targeted level of food production. The soils of Indo-Gangetic Plain, are showing signs of fatigue due to falling organic carbon levels and deficiencies of macro, secondary and micro nutrients. The integrated use of organic and inorganic source of nutrient ensures better and sustainable yields. In the light of present investigation it may be concluded that 100% NPK + 5t FYM + 40 kg S ha-1 can be recommended to the farmers for successful cultivation of mustard in addition to improving fertility status viz., N, P, K, S and Zn of soil.